12pm in Zürich is 11am in London

When it’s 9am in London, it’s 10am in Zürich. Zürich is 1 hour ahead London. Both cities follow European daylight saving time, so the offset stays consistent year-round. The best time to schedule calls between the two cities is 9am to 5pm London time (which is 10am to 6pm in Zürich). Business travelers between London and Zürich benefit from substantial market overlap, with opening bells and close-of-business windows lining up comfortably. With a small gap, neither city bears a heavy scheduling burden, and both can usually accommodate calls without unusual flexibility. Having a standing calendar slot for cross-city calls reduces back-and-forth over scheduling and keeps projects moving efficiently.